/*
 * Copyright (C) 2005-present, 58.com.  All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.wuba.wlock.repository.interceptor;

import com.baomidou.dynamic.datasource.processor.DsProcessor;
import com.baomidou.dynamic.datasource.support.DataSourceClassResolver;
import com.baomidou.dynamic.datasource.toolkit.DynamicDataSourceContextHolder;
import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;

public class WlockDynamicDataSourceAnnotationInterceptor implements MethodInterceptor {

	private static final String DYNAMIC_PREFIX = "#";

	private final DataSourceClassResolver dataSourceClassResolver;
	private final DsProcessor dsProcessor;

	public WlockDynamicDataSourceAnnotationInterceptor(Boolean allowedPublicOnly, DsProcessor dsProcessor) {
		dataSourceClassResolver = new DataSourceClassResolver(allowedPublicOnly);
		this.dsProcessor = dsProcessor;
	}

	@Override
	public Object invoke(MethodInvocation invocation) throws Throwable {
		String dsKey = determineDatasourceKey(invocation);
		DynamicDataSourceContextHolder.push(dsKey);
		try {
			return invocation.proceed();
		} finally {
			DynamicDataSourceContextHolder.poll();
		}
	}

	private String determineDatasourceKey(MethodInvocation invocation) {
		if (invocation.getArguments()[0] instanceof String) {
			return (String) invocation.getArguments()[0];
		}
		return "online";
	}
}
